Mini wannabe datron build

Thanks

My spindle has caused a big issue. I wanted my 60000rpm spindle for micro milling etc. But it turns out the drives above 599hz are basically banned now.

So now i have to either get the same spindle custom wound to 36000rpm, or alternatively go to a larger 30000rpm iso20 spindle which has a lot of plusses but is really kinda too big for the machine.

 

Hmmmm

On the bright side I did get the existing spindle behaving since the steel cutting video. It doesn't bog down anymore. Gonna do another nifty video cutting 0-1 steel next week. Waiting on cutters.
 

I've been thinking of a similar design. What  brand is your spindle? Maybe you should send it to me down under and I can source a 1000 Hz VFD
Did you look at ISO-10 spindles?

hehehe

i am looking for 2 "guinea pig" buyers... nudge nudge.

The spindle i have no is DECI brand, although i am working with jianken on the the one we will use for the final machine. I need to order 5 or more to do modifications though beyond the simple winding change to 36k. They do an iso10 variant, its a few hundred dollars extra.

Your in aus right? you can buy 1000hz drives there still, but they couldn't be sent here and even if i "smuggled" one in, i could not then resell the machine with it anyway. So annoying.

There seems to be a possible exemption on PMSM spindle "kits" like a jaeger because the drive is only usable with that spindle, and not generic (so you couldn't run a centrifuge with it.

So annoying, but i think the smartest thing to do here for customers is to restrict it to 36k. 36krpm is still pretty amazing for micro cutting.

Hmm, what about a Nakanishi AIr Spindle? No frequency required and obscene speeds.
Yes I'm in .AU here. Puts us close to China if you must deal with them.

I have 2 nakanishi electric spindles for my micro mill, 3000 series. does 60-80k rpm. you might want the 4000 series thought. they have their own NSK driver to handle the speed

nsk is now with jaeger as one company btw.

The appropriate size ATC spindles form them cost $15000+. So a non starter even if I could legally use them on this machine (which I'm not sure of).

My ATC spindle is 1.5kw @ 60000rpm for reference and is only about $1000. The entire machine loaded with goodies will be in the $20k usd area. Walking that line between cheap, good, and FAST. haha.